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第一节 关于悬挑梁的工作状态 为满足建筑造型、建筑功能或结构自身的需要,在混凝土结构设计中经常采用悬挑构件。悬挑构件包括悬挑梁、悬挑板、悬挑桁架等,其中,悬挑梁的应用最为普遍。 悬挑梁的工作状态,通常有三种增况: 1.当悬挑梁尽端为自由端时,除较高级别抗震设计须做竖向地震力计算之外,对悬挑梁的内力分析通常不与主体结构同时进行,其内力分析是相对独立的。悬挑梁的运动经支座作用于主体结构(框架或剪力墙),而主体结构的内力不会反过来影响悬挑梁的内力。此种工作状态下,悬挑梁基本上属于结构上的构件,而不参与构成结构主体。
Section I About the Working State of Cantilever Beams In order to meet the needs of architectural modeling, building functions or the structure itself, cantilevered components are often used in the design of concrete structures. Cantilevered members include cantilevered beams, cantilevered plates, cantilevered trusses, etc. Among them, cantilevered beams are most commonly used. The working state of the cantilever beam usually has three types of increase: 1. When the free end of the cantilever beam is free, the analysis of the internal force of the cantilever beam is usually not performed except that the higher-level seismic design must calculate the vertical seismic force. The main structure is performed at the same time, and its internal force analysis is relatively independent. The movement of the cantilever beam acts on the main structure (frame or shear wall) via the bearing, and the internal force of the main structure does not affect the internal force of the cantilever beam in turn. Under this working condition, the cantilever beam basically belongs to the structural component and does not participate in forming the structural body.